Liquid-storage tank



LIQUID STORAGE TANK Filed July 2, 1928 F/GJ.

[m Mbnogz i020 0 5 hoods b,- as shown in Patented Dec. 31, 1929 UNITEDSTATES PATENT o Flcs IVAN nomouovrrcn 510m, or LONDON, ImenumLIQUID-STORAGE ram:

Application am July 2, 1928, Serial 1T0. 889,918, in in Great Britain me, 1927.

1 This invention relates to liquid storage tanks of the type having afioatin roof, and

' more particularly to which the roof is divided into a plurality of 5flexibly connected cells.

According .to this invention one ormore open containers for rain orother water is or are provided on the. upper surface of the floatingroof. In the case of a cellular roof means are also rovided forpreventing the water from finding its way into the tank between twoadjoining cells.

The invention as applied to a cellular roof is illustrated by way'ofexample in the an- .ne'ired drawings, in which Fig. 1 is a partial plan.7

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3'is adetail on an enlarged scale, and

Fig. 4 is a side view of a further'detail.

shown in the drawings, the water containers are formed with plainvertical side walls a 'oppositeto which on adjacent cells a: arearranged other walls I) which are bent as 85 extend over prevent the.cent cells :0.

At'the corners where four cells abut a sliding cover plate 0, which ispreferably octagonal, rests on the upper surface of the Figs. 1and4.. H

Although the containersare usually sup;

the upper edge of the walls a and entry of water between two adjapliedwith rain water they may, if desired, bd

supplied with water from any convenient source, which may also be usedat any time ensure that, the level of the water is approxi gj mately thesame in all the containers in order; to prevent any particular cell fromtilting.

relatively to the others. v

Having thus described the nature of my said invention and the tanks ofthe type in" shown in Figs. 2 and 3 to form hoods which i 2. A liquidstorage tank, a cellular floating roof for said tank, a plurality ofwater containers locatedv on the upper surface of said roof, said cellssupporting'bent walls which form hoods for plain vertical walls ofadjacent containers, and a slidin the upper. part of each hood more thantwo cells meet.

In testimony whereof I have signed my name to this specification.

' IVAIIODIOIOVITCH AFONII. [L 8.]

best means I know of carrying the same into practical efiecfi Iclaim': 1. A floating roof for lhfiid storage tanks comprising aplurality of cells .each having walls projecting upwardly therefrom andforming water containers,some of said walls being bent outwardly anddownwardly to ex- 50 tend over ad acent unbent walls of adjacent platerestin on at corners w ere

